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ROBERT HENEAGE, OF BUFFALO, NEWYOBK, ASSIGNORTO'BREED, AND` COMPANY, OFSAME PLAGE.

Letters Patent N5. 80,410, ma July 2s, 186e.

IMPROVEMENT 1N stirs-rames( TO ALL WHOM IT MAY CONCERN:

Be it known that I, ROBERT HENEAGE, of the city of Buti-aio, county ofErie, and State of New York, have invented a certain new and usefulImprovement in Slates; and I do herebydeclare that the following is a.full and exact description thereof, reference being had to theaccompanying drawings, making part of this speciication.

Figure I shows a slate provided with my improvement.

Figure 2, a perspective view of one corner of the frame, and itsbinding-cushion detached.

Figure 3 is a central vertical longitudinal section of thebinding-cushion.

Like letters of reference indicate corresponding parts in the severalfigures.

My invention consists in combining, with the corners of the slate-frame;India-rubber sockets or mats, which serve the double purpose ofcushions, to prevent shock, and hinders, to retain the parts of theframe in place.

AIn the drawings, A indicates the plate of siate-stone, and B B B B thefour wooden sides forming the frame.

The corners e e of the frame are made rounding, and at each side'areprovided with notches, a a, as clearly shown in fig. 2.

Over the corners are stretched rubber rnats or sockets C O, made ofsuitable thickness, and provided inside with projecting tongues orcatches b b, that catch in the notches ct a, and outside with nipples cc, that form the points oi' contact with any exterior surface.

I am aware that' blocks of rubber have been before set intosiate-frames, for the purpose of cushioning the same, and preventingshock in contact with any outside body. My arrangement serves a furtherpurpose, fort while this same effect is produced, I am enabled to bindthe ends of the frame together bythe sockets, without the use of theordinary pin that passes through the ends', Acoupled by socket andtenon. Thus the parts ofthe frame can be readily detached when desired.

(An additional advantage is produced in enclosing the whole corner ofthe frame, thereby securely shielding it from concussion.

What I claim as my invention, and desire to secure by Letters Patent, is

The rubber mats D D, provided with the catch'es'b'b and nipples c c, incombination with the rounding .corners e e of the slate-frame, havingthe notches a a, the whoie arranged as described, and operating in themannerand for the purpose specified.

In witness whereof, I have hereunto signed my name in the presence oftwo subscribing witnesses.

ROBT. HENEAGE. Witnesses:

J. R. BRAKE, LYMN P. PERKINS.

